초록 ▼

A rotary filament assembly is provided wherein a plurality of resilient monofilaments are attached to a rotary member such that free portions of the resilient monofilaments extend substantially vertically when the rotary member is at rest and such that upon rotation of the rotary member at a predete

A rotary filament assembly is provided wherein a plurality of resilient monofilaments are attached to a rotary member such that free portions of the resilient monofilaments extend substantially vertically when the rotary member is at rest and such that upon rotation of the rotary member at a predetermined speed, the free portions sever vegetation, such severance serving purposes of mulching and/or cutting and trimming. In one embodiment (10) used in a power lawn mower (29), the rotary filament assembly can cut and/or mulch vegetation and has resilient monofilaments (14) mounted to a blade (12) such that their free portions (24) extend substantially upwardly when the blade (12) is at rest. In another embodiment (110) used in a hand-held power trimmer, resilient monofilaments (128, 128′, 130, 130′, 132, 132′) are selectively mounted on a solid disk (112) such that their free portions (130a) extend substantially downwardly when the solid disk is at rest.

대표청구항 ▼

A method of using a horizontally disposed rotary member to produce lawn mulch, comprising the steps of: providing said horizontally disposed rotary member with a mount; bringing a resilient monofilament into communication with said mount so that said resilient monofilament is removably attached to s

A method of using a horizontally disposed rotary member to produce lawn mulch, comprising the steps of: providing said horizontally disposed rotary member with a mount; bringing a resilient monofilament into communication with said mount so that said resilient monofilament is removably attached to said horizontally disposed rotary member and a free portion of said resilient monofilament protrudes from said horizontally disposed rotary member and points substantially upwardly out of said horizontally disposed rotary member; and attaching said horizontally disposed rotary member to a drive shaft of a power lawn mower; whereby operation of said power lawn mower causes said resilient monofilament to reduce fragments of cut vegetation into fine particles suitable for lawn mulch.